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10 Cards in this Set
- Front
- Back
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1 lightyear = |
9.5x10^15 or approx. 10^16 |
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Radar Ranging (distance) |
S=(CΔt)/2 |
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1 AU (astonomical unit) = |
1.5x10^15m |
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The Inverse Square Law |
Intensity ∝1/(distance)^2 |
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Whats a standard candle? |
A group of stars that have known and luminosity brightness (i.e cephid variable) |
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Radar Ranging (speed) = |
V=(S2-S1)/t or ΔS/t from S=(CΔt)/2 |
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Doppler shift (oneway) = |
Δλ/λ=v/c |
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Doppler shift (twoway) |
Δλ/λ=2v/c |
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Gamma Factor = |
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K factor |
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